1. uncountable noun R & R refers to time that you spend relaxing, when you are not working. R & R is an abbreviation for 'rest and recreation'. [mainly US] ⇒ Winter spas are now the smart set's choice for serious R & R. 2. uncountable noun R & R refers to time that members of the armed forces spend relaxing, away from their usual duties. R & R is an abbreviation for 'rest and recuperation'. [US] ⇒ Twenty-five years ago Pattaya was a sleepy fishing village. Then it was discovered by American soldiers on R & R from Vietnam.
COBUILD Advanced English Dictionary. Copyright © Harper Collins Publishers